@Fran
I apologize for the inconvenience you're experiencing. It seems there are two separate issues: the model is inserting random and inappropriate words during Spanish conversations, and calls are unexpectedly ending.
For the first issue with the language model, it would be helpful to gather specific instances where this has occurred. If you could provide logs or examples, we can forward this to our development team for review and improvement.
Regarding the calls that suddenly stop, this could be due to a variety of reasons such as network issues, bugs in the system, or other technical difficulties. To address this, we would need to investigate the logs around the time the calls dropped. If you can provide the time frame or any error messages you received, that would be very helpful.
In the meantime, if there's anything else I can assist you with, please let me know.